Estudio OkamiA tattoo is permanent and it breaks the skin. It is, technically, an invasive procedure, and in Chile it is regulated: Supreme Decree 304 of 2002 sets the sanitary conditions any place that tattoos has to meet.
Chile and Uruguay are the only countries in the region with a uniform national standard. In most neighbouring countries the requirements change city by city, or do not exist at all. That means here there is something concrete you can ask to see.
What the rule requires, briefly: a current health authorisation for the premises, single-use needles, sterilisation of anything reusable, washable surfaces, a sink in the working area, and a record of every procedure with the client’s informed consent.
How to check it without being an expert: ask to see the health resolution, watch that the needle is opened in front of you, and expect to sign an informed consent form. If all three are there, you are in a compliant place. If any is missing, that alone is reason enough to get up and leave.
At Estudio Okami the informed consent is digital and recorded on every session. It is not paperwork: it is the part of the regulation that protects both sides, and it is the first thing an informal setup skips.